$545 Find Cheap Flights from Sydney to Siem Reap

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Siem Reap departing on 27/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Siem Reap

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Siem Reap, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Siem Reap, as well as popular online travel agencies
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Flight Deals

Book Cheap Sydney to Siem Reap Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Siem Reap that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Siem Reap

Sun, 22 Mar - Fri, 27 Mar
Multiple Airlines Logo
21:50 - 09:20
SYD
-
SAI
15h 30m
1 stop
Multiple Airlines Logo
09:05 - 09:15
SAI
-
SYD
20h 10m
1 stop
$838Multiple Airlines
Sun, 22 Mar - Fri, 27 Mar
Multiple Airlines Logo
21:50 - 15:00
SYD
-
SAI
21h 10m
1 stop
Multiple Airlines Logo
21:30 - 09:15
SAI
-
SYD
31h 45m
2 stops
$842Multiple Airlines
Sun, 22 Mar - Fri, 27 Mar
Multiple Airlines Logo
21:50 - 15:00
SYD
-
SAI
21h 10m
1 stop
Multiple Airlines Logo
19:05 - 20:20
SAI
-
SYD
45h 15m
3 stops
$855Multiple Airlines
Sun, 22 Mar - Fri, 27 Mar
Multiple Airlines Logo
13:35 - 15:00
SYD
-
SAI
29h 25m
3 stops
Multiple Airlines Logo
09:05 - 06:15
SAI
-
SYD
17h 10m
2 stops
$1,050Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Siem Reap flights

Get data-powered insights and trends into flights from Sydney to Siem Reap to help you find the cheapest flights, the best time to fly, and much more.

How much is a return flight from Sydney to Region of Siem Reap?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Region of Siem Reap departing in March.

What is the cheapest month to fly from Sydney to Siem Reap?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Siem Reap, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Siem Reap is September, when tickets cost $783 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $1,659 and $1,505 respectively.

Good to know

Low seasonFebruary
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (57% more expensive on average)

FAQs - booking Siem Reap flights

  • How does KAYAK find such low prices on flights from Sydney to Siem Reap?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Siem Reap.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Siem Reap?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sydney to Siem Reap is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Siem Reap?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Sydney to Siem Reap with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Siem Reap?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sydney to Siem Reap up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sydney to Siem Reap

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Siem Reap. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Siem Reap? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1471 reviews
8.6Crew
8.0Comfort
8.3Boarding
8.0Entertainment
7.8Food
Airline reviews

Excellent crew service. Professional, courteous. Service with a smile. Good food Very decent flight experience

10.0 ExcellentAnonymous, Feb 2026
SAI - SIN
Read more Singapore Airlines reviews

Excellent crew service. Professional, courteous. Service with a smile. Good food Very decent flight experience

Overall were very good and I was satisfied w/ all the food and services.

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

The flight crew was phenominal! We couldn't have asked for any better. They were experienced professionals.

The crew was very courteous and professional. the flight is relatively clean and comfortable.

Pleasant business class flight experience with good onboarding experience. Flight service team was excellent with usual book-the-chef menu available

SQ service is great as always. However, the food quality seems to have gotten a lot worse recently.

Wish the seat don’t have restrictions, can’t fully insert backpack all the way inside.

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

The business class seats were very uncomfortable. When in lie flat position my legs were very restricted.

This was our fourth domestic flight with Vietnam Airlines, and once again we found the experience very suitable. Check-in was easy and efficient. They did take our carry-on luggage, but that was fine. I’m actually happy not to deal with it on such a short flight. The flight was just over an hour, departed on time, and we climbed above the clouds into a beautiful sunset. Even on such a short flight, they served water, which we appreciated. Luggage came out into carousel in Nha Trang in good time and off we went to meet our GRAB. Also, Vietnam Airlines have easy to locate ground level offices in cities and towns where you can get assistance with staff. I liked this service as we did go visit one in Nha Trang. We would definitely recommend Vietnam Airlines and wouldn’t hesitate to fly with them again.

Really good 👍 This was our first time flying with Vietnam Airlines. It was a short domestic flight, so no meal service, but boarding was organized and the flight departed and arrived on schedule. The flight attendants were professional and neatly presented. All in all, a very good first experience. We would recommend Vietnam Airlines.

We flew with their partner VESCO on a small plane, it was a really good flight. There was no food or entertainment as it’s a one hour hopper flight.

The flight boarded and departed pretty much on time as it’s just a one hour flight there is no food or entertainment so I marked that at the neutral but they do offer water and I’m sure if you needed some food you could bring your own onboard. This was our third internal flight with Vietnam Airways and I recommend them.

This is a very short commuter flight, so there is no food or flight entertainment. Hence, I marked it in the neutral flight left on time. The plane was full pretty much and it was a pretty easy flight overall very good.

The flight crew and attendants are very professional and polite.

Food and welcome services were good , however we experienced issues with the entertainment system and poor headsets

Very good flight and very kind crew Only thing is I wish there would be a vegetarian option for the meals

Lovely staff, comfortable seats. Transit time was short but they had great processes in place to get us on the plane.

For a domestic flight, seats are ok, but fir us as tall dutchies, the legroom is too small. However, for a short and affordable flight, is not a big problem. Staff is still very nice and a complementary water very welcome.

Everything you need to know for your flight from Sydney to Siem Reap

Information on your arrival and departure airports